| 1 | Bison IV Operating LLC | | Oil & Gas Operator | Oct 2025 |
| 2 | Blackrock Energy Corp | | Oil & Gas Operator | Nov 2025 |
| 3 | Consolidated Resources, Inc. | | Oil & Gas Operator | May 2004 |
| 4 | Dunamis Energy Operating LLC | | Oil & Gas Operator | Nov 2025 |
| 5 | Edge Energy II LLC | Golden, CO 80401 | Oil & Gas Operator | Nov 2025 |
| 6 | Extraction Oil & Gas LLC | Denver, CO 80202 | Oil & Gas Operator | Oct 2025 |
| 7 | Harburg* Rudolph W | | Oil & Gas Operator | Nov 2022 |
| 8 | Kerr-McGee Oil & Gas Onshore LP | Houston, TX 77046 | Oil & Gas Operator | Dec 2025 |
| 9 | Magpie Operating, Inc | | Oil & Gas Operator | Oct 2025 |
| 10 | McWhinney Holding Company LLLP | | Oil & Gas Operator | Mar 2021 |
| 11 | Monahan* Rex Family Trust | | Oil & Gas Operator | May 2007 |
| 12 | Nielson & Associates, Inc | Cody, WY 82414 | Oil & Gas Operator | Feb 2016 |
| 13 | Noble Energy Inc | Midland, TX 79706 | Oil & Gas Operator | Dec 2025 |
| 14 | PDC Energy Inc | Denver, CO 80203 | Oil & Gas Operator | Nov 2025 |
| 15 | Peterson Energy Operating Inc | Loveland, CO 80537 | Oil & Gas Operator | Nov 2025 |
| 16 | Prairie Operating Co LLC | | Oil & Gas Operator | Oct 2025 |
| 17 | Prospect Energy LLC | | Oil & Gas Operator | Jan 2024 |
| 18 | Tom Fenno Production LLC | | Oil Operator | Apr 2017 |
| 19 | Unioil | Denver, CO 80203 | Oil & Gas Operator | Dec 2010 |
| 20 | Wellington Operating Company | | Oil & Gas Operator | Aug 2025 |